Type-writing machine.



Patented Sept. 2, 1913.

2 SHEETS-SHEET 1.

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ATTOR EY W. B. BARNARD. TYPE WRITING MACHINE. APFLIUATION FILED 11mm, 1912,

1 ,071 ,860, Patented Sept. 2, 1913.

2 SHEETS-SHEET 24 INVENTOR'.

ATTORN stop-restrainin g tron.

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UNITED STAEEQ ETENTl OFFICE.

"WALTER, E. BARNARD, OF HARTFORD, CONNECTICUT, ASSIGNOR T0 UNDERWOOD TYPEWRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPE-WRITING MACHINE.

Patented Sept. 2, 1913.

Application filed June 6,1912. Serial No. 701,995.

Specification of Letters Patent.

frame stop in different positions. Fig. 5 is a rear View of a fragment of the stop mecht anism. Fig. 6 is a front view of the same,

showing more parts. Fig. 7 is a perspective 1 view, showing the arrangement of the keyopcrated plunger-s. Fig. 8 is a diagrammatic view, showing the relation of the various carria e stops to the counter-stop trip.

To 11/1, whom it may concern:

llc it known that l, WALTER E. BARNARD, a citizen of the United States, residing in Hartford, in .the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Typell'riting Machines, of which the following is a specification.

This invention relates to tabulating mechanism for typewriting machines, and more especially to column-finding mechanism. The principal object of the invention to provide a simple, inexpensive, reliable and promptly-acting mechanism of this class.

According column stops of the most simple and compact character may be employed. A c/umtcr-stop is mounted upon the machine frame, and a spring is provided for projecting said counter-stop into the path of the column stops. This counter-stop is restrained, however, by a latch. There is also mounted upon the machine frame a trip for releasing said latch, and said trip is'selectively operable by the column stops. The trip may be adjusted to different positions by ditl'erent column-tinding keys, and may thereby be thrown into engagement with ditlerent column stops; the latter havin shoulders of graduated lengths, or arrange in echelon, so that when the trip is in the first position it can be engaged by a shoulder on the first stop, and when the trip is inthe next position it will be missed by the first column stop but engaged by the shoulder on the second column stop, and. soon. The trip is settable to as many different positions as there are column-finding keys, .or as there are different shoulders on the column stops. The trip haste cam portion to be engaged by said shoulders, wherebythe trip drive-n'bodily downand swings the,

latch to inoperative posi Keys 1 o the'typewriter depress levers 2 to swing type bars-3 upwardly and rearwardly by means of hell cranks 4, so that is type '5 strike against a platen 6 in a carriage 7. Said carriage is drawn inletter-feeding direction by means of a spring barrel 8, and is controlled in its travel bymeans of dogs 9 operating on an escapeinent wheel 10, connected to a pinion 11 working in a rack 12 l on said carriage. Said dogs are vibrated through a universal bar'13 by heels 14 on the type bars.

In the preferred form of the present invention, the tabulator keys not only release the carriage rom feeding devies, but also operate to tension 'a' spring, whose. function it is at the proper time to project or set the counter stop which arrests the carriage; the keys moreover performing the further function of adjusting to difierent positionsa cam orinterponent, so that it Wlll be struck by the particular column stop which corrcspondswith the depressedkey, and cause the counter-stop to snap up tointercept the same column stop, whereby the carriage is arrested at the selected column. It will be understood that said counter stop, although put under tension when any tabulator key is depressed, is restrained by a latch, and that the latch is released by means'of said column stop operated interponent or cam.

The tabulator keys are seen at 15 on levers 16, which raise plungers or rods 17. Each plunger 17 strikes a carriage-releasing universal member 20 by means of a shoulder 21, and swings said universal member 20 to draw down a link 22 and release the carriage from the escapernent wheel 10 by raising the rack bar 12' out of mesh with the pinion 11. This is done'bylmeans of a roll 23' on an arm 24 pivoted on a frame at 25; the rack 12 being pivoted on the carriage 7 at 26. The carriage when thus freed from the escapement wheel 10 is drawn forward to the present improvements,

Other features and advantages will here- In the accompanying drawin s,Figure 1 is a. diagrammatic side view 0 arr Underwood typewri-tin machine, showing my invention applied t ereto. Fi 2 is a perspective view of someof the ta ulatingmecha nism. Figs. 3 and 4 are side views of the the control'of the letterby the spring barrel 8 and travels along until arrested at the column selected by the depressed key. Each of these column-finding or tabulator keys 15 (except the first at the left-hand side, Fig. 2), when it is depressed, operates through its plunger 17 and the universal member .20 to put a tension on a stop setting spring 33 connected at its ends respectively to the member 20 and a counter stop or frame stop 19, and through said tension tends to draw the counter stop upward into position to arrest the carriage. Said counter stop is, however, temporarily prevented from rising by means of a latch 30, Fig. 3, bearing against a pin 31 on the lower extension 32 of said counter stop.

As the already released carriage runs along, one or another of its column stops 27 operates through a trip or latch releasing bar 18 to throw over the latch 30 and thereby release the counter stop 19, to permit it to be lifted by said spring 33 into the path of a column stop. The trip 18, which is adapted to move vertically, is operated or cammed down by a shoulder or extension 36 on one of the column stops 27. By this means the trip 18 is thrust bodily downward against the tension of a returning spring 37, and by means of a shoulder or extension 38 strikes an arm 39 on said latch 30, and frees said latch by swinging it on a stationary pivot pin 45, which fits loosely in a slot 14 in said latch. The release of said counterst0p 19 from said latch 30 permits the spring 33 to snap up the counterstop into the path of a column-stop 27 and arrest the carriage.

The trip 18 is adjustable to different positions for cooperation with different column stops, and for this purpose may be swung on a pivot 42 secured to the machine frame and extending through a slot 43 in said trip. The upper end of the trip extends through a slot 46 in the tabulator frame and normally bears against the rear wall of said slot. The trip. may be swung inward into the path of longer or shorter shoulders or extensions 36 on the column stops 27 on the carriage. These column stops 2?, as is seen in Fig. 8, are formed with successively longer shoulders or extensions 36, so that when the column-stop engaging trip 18 is lying in its normal position against the rear wall of the slot 46, it will lie just outside the path of the longest of the extensions 36, namely, the extension which is formed on the extreme right-hand column stop. \Vhen swung inward as described above, it will lie in the path of shorter extensions, as is shown dmgr matically in Fig. 8. This adjustment of the trip 18 to engage different column stops, is controlled by the various tabulator keys 15, so that said keys cause the various extensions 36 to selectively act on said trip or selector. For this purpose each plunger 17 operated by the keys 15 (except that operated by the first or left-hand key) comprises a shoulder or lug 47, which swings a camshaped arm 48 upwardly against an inclined edge 41 on said trip 18 to various extents depending largely upon the distance of the active plunger 17 from the pivot of said arm 48. Thus the last or right-hand key is arranged to move said trip only enough to bring it into the path of the longest extension 36 on the right-hand carriage stop; the key next to the last moves it a short distance itarther inward into the path of a slightly shorter extension 36 on the next carriage stop; the next key moves said selector still farther inward into the path ofa still shorter extension 36, etc., whereby the operator may select the columnar position at which the carriage shall stop.

The first plunger 17 may have no lug 47, but may carry an arm 29, which extends against a cam edge 49 on the latch 30, and by the depression of its key 15, said arm 29 is arranged to swing said latch directly and thereby release the counter-stop 19, so that the stop is drawn by the spring 33 into position to arrest the carriage. The counterstop 19 is normally held in its inoperative position by means of a spring 40, distinctly 95 weaker than the spring 33 which draws it upward; and the cam arm 48 and'trip 18 may be held in their normal positions by means of a single spring 37.

Variations may be resorted to within the 100 scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, the combi- 5,

nation with a carriage, a rack, and a stop adjustable on said rack, ofa counter stop movable to intercept said carriage stop, a spring tensioned to raise said counter-stop at the operation of a tabulator key, a latch 11g holding said counter-stop against move ment by said key, and means moved by the stop to release said latch.

2. In a typewritin machine, the combination with-a owerriven carriage, releas- 11; able letter-fee in mechanism, a rack, and a. stop on said rac of a counter stop movable to intercept said carriage stop, tabulator keys, means operated by said toys for releasing said carriage and permitting it to travel, a spring tensioned by the tabulator keys to raise said counter stop, a latch holding said counter-stop against operation, and means moved by the carriage to release Said latch.

3. In a typewriting machine, the combination with a carriage having a stop. of a counter-stop movable to intercept an id stop, a tabulator key, a member movable by said key to place tension on said counterstop, a

latch holding said counter-stop against said to release said latch.

4. Ina typewriting machine, the combi-.

nation with a carriage, a rack, and a stop on said rack, of a counter-stop movable to intercept said carriage stop, a tabulator key, a spring tensioned by said key and tending to project said counterstop, a latch holding said counter-stop against said tension, and means moved by said key to 'rer' lease said latch.

5. In a typewriting machine, the combination with a carriage, a rack and a stop adjustable on said rack, of a counter-stop movable to intercept said stop, a tabulator key, a spring tension'ed by said key to set said counter-stop, a latch holding said counter-stop against said tension, and means moved by said key to release said latch.

6. In a typewriting machine, the combination with a carriage, a rack, and a stop on said rack, of a-counter stop movable to intercept said" carriage sto a tabulator key, a key-tensioned spring placing tension on said counter stop, a latch holding said counter stop against said tension, a latch releasing bar, and an extension on said carriage 'to strike said bar.

7. In a typewriting machine, the combination with a carriage, a rack and a series of column stops on said rack, of a counter stop, tabulator keys, extensions or shoulders on said column stops and arranged in echelon, a spring tensioned by the keys .to set-said counter .stop to intercept said column stops, a latch restraining said counter stop, and a membcrmovable selectively by said keys to cooperate'with the selected extension or shoulder to release said latch.

8. In a typewriting machine, the combination with a carriage, a rack and a series of column stops on said rack, of a counter stop, tabulator keys, extensions or shoulders on the-column stops arranged in echelon, a member adjustable by said keys selectively into the paths of said extensionsor shoulders to select the desired column-stop, a

' key-tensioned spring tending to draw said counter stop'to intercept said column stops,

and a latch for holding said counter-stop against said spring tension, said latch being released by said adjustable member.

9. In a typewriting machine, the combination with a carriage, a rack and a series of column stops adjustable on said rack, of a counter-stop, tabulator keys, and means for operating said counter-stop directly by one of said keys, and for causing it to be operated selectively by said columnstops by the remainder of said keys, according to the key operated.

10. In a typewriting machine, the combination with a stop plunger, of an array of tabulator keys, a series of plungers operated thereby, a universal member moved by every plunger and by the stop plunger, a key-tensioned spring drawing said stop plunger against said universal member, and

a weaker spring drawing said stop plunger to inoperative position. i I 11. In a typewriting machine, the combination with a carriage, a rack and a series of stops on said rack, of a counter stop, a carriage-operated trip for setting counter stop and pivoted on the frame of the machine, tabulator keys, and a bar variably operated by trip on its pivot to cause one said keys to swing said of said series of stops to selectively operate said counter so stop.

12. In a typewritng machine, the combination with a carriage, a rack, and a series of column stops on said rack, of a counter stop, counter-stop to interceptsaid column stops, a latch holding said counter-stop against said tension, a tabulator key, and a bar moved by said key to swing said latch to permit said 13. In a typewriting machine, the combi nation of a carriage, a column-selector stop, means tending to move said stop, means to hold said stop retracted, a tabulator key operating directly to release said stop, a second tabulator 'key, and means controlled by said second key and operating through movement of the carriage to release said Stop;

' 14. In a typewritingmachine, nation of a carriage, a stop thereon, a counter stop, means to putsaid counter stop under tension to move it into the path of the carriage, stop, means to hold the counter stop against such to release the counter stop from said holding means.

15. In a typewriting machine, the combination of a carriage, a stop thereon a counter stop, a spring, means to cause the spring to place the counter stop under tension tending to move it into the path of the carriage stop, means to hold the counter stop against such movement, and a deviceoperated by the carriage stop, to release the counter stop from said holding means.

16. In a typewritingmachine, the combination of a carriage, a stop thereon, a counter stop, means to put the counter stop under tension tending to move it into posi-- tion to-intercept the carriage stop, means to hold the counter stop against such movement, and means operated by the carriage to automatically release the counter stop when the carriage reaches a predetermined position.

17. In a typewriting machine, the combination of a carriage, a stop thereon, a

said 75 a key-tensioned spring to set the g5 counter stop to become efl'ective.

the com bi- 0 movement, and a device 'counicr stop, spring, means to cause said spriin, to place said counter stop under tension tending to move it into the path of the carriage stop, a latch to hold the counter stop a; illlSt such movement, and a trip to operate said latch and release the counter stop.

18 In a typeivriting machine, thecomhination of a carriage, a series of column stops thereon, a counter stop, means to place tension on the counter stop tending to move it into the oath of the column stops, a dc vice to hold the counter stop against said movement. a trip device, and means to selectively set the trip device to positions to be operai' by the dill'erent column stops and then. release the counter stop.

It. In a typcwriting machine, the com bin-ation of a carriage, column stops thereon, tabulator keys, a counter stop, key-controlled means to place tension on the counter stop tending to move it into the path of the column stops, :1 device to hold the counter stop against said movement, and a trip device operable by said tabulator keys to different positions, to be selectively operated by the column stops to release the counter op and cause it to engage the column stop which corresponds with the actuated tabulator key.

20. In a typewriting machipe,

the combination with a. carriage, of a series of stops thereon, a counter stop normally out of the path of the carriage stops, a device controlling the position of the counter stop, tabulator keys, and means operated thereby to move said controlling device into positions to be selectively operated by the'carriagc stops and thereby cause a movement of the counter stop into the path of a carriage stop.

21. In a typewriting machine, the combination with a carriage, of a series of stops thereon, a counter stop normally out of the path of the carriage stops, means for putting the counter stop under tension tending to move it into position to interceptthe carriage stops, a latch holding the counter stop in said position, a. trip for said latch, tabulater keys, and means adjustable thereby to move the trip into positions to be selectively operated by the carriage stops and thereby operate the latch, to release the counter stop and permit the latter to intercept the carriage slop which operates the (rip.

22, The combination, in a typevvriting machine. of a carriage, stops thereon, a counter stop, key-tensioned means to project the counter stop, means to hold the counter stop in inoperative position, and a trip device selectively operable by the carriage stops, to release the counter stop and permit it to intercept the carriage stop which actuates the trip device.

23. In a type-writing machine, the combination with a carriage having a column stop, of a counter stop, a tabulator key, a spring for projecting said counter stop, means for enabling said key to put said spring under tension, and a device to restrain said counter-stop, said restraining device being releasable by said column stop.

2%. 1n :1 typewriting machine, the combin-ation with a carriage having a series of adjustable column stops, of a. counter stop, a series of t-abulator keys corresponding with said column stops, means put under tension by said keys for projecting or operating said counter stop, a device for restraining said counter stop, said restraining device being releasable by any of said column stops,,and means to cooperate with said keys for determining which column stop shall release said counter stop,

25.111 atypewriting machine, the combination with a carriage having a series of column sto is, of a counter stop, a spring to project or set said counter stop, keys corresponding respectively with said column stops, means operated by said keys for tensioning said spring, a device for restraining said counter stoo. said restraining device being releasable either by a certain one of said keys or by any of the column stops associated with the remaining keys, and means to cooperate with said remaining keys for determining which column stop shall. release said counter stop.

WALTER BARNARD.

Witnesses I. E. Annxaxona, J. F. Bnor'HY,

Copies of this patent may be obtained for five cents each, by addressing the (o2nm1ssioner of 2mm, Washington, D. G. 

